Aubertite
A valid IMA mineral species
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About Aubertite
Formula:
CuAl(SO4)2Cl · 14H2O
Colour:
Azure-blue.
Lustre:
Vitreous
Hardness:
2 - 3
Specific Gravity:
1.815
Crystal System:
Triclinic
Member of:
Name:
Named for J. Aubert (1929-), geophysicist and assistant director at the Inst. Natl. Geophysics, France, who collected the mineral in 1961.
This page provides mineralogical data about Aubertite.
Unique Identifiers
Mindat ID:
416
Long-form identifier:
mindat:1:1:416:3
Similar Names
| Albertite | A variety of 'Pyrobitumen' |
IMA Classification of Aubertite
Approved
IMA Formula:
Cu2+Al(SO4)2Cl · 14H2O
First published:
1979
Classification of Aubertite
7.DB.05
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
B : With only medium-sized cations; insular octahedra and finite units
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
B : With only medium-sized cations; insular octahedra and finite units
Dana 7th ed.:
31.9.8.1
31.9.8.1
31 : HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN
9 : (AB)(XO4)Zq·xH2O
31 : HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN
9 : (AB)(XO4)Zq·xH2O
26.9
26 : Sulphates with Halide
26 : Sulphates with Halide
Mineral Symbols
As of 2021 there are now IMAâCNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Aub | IMAâCNMNC | Warr, L.N. (2021). IMAâCNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Aubertite
Vitreous
Transparency:
Translucent
Colour:
Azure-blue.
Streak:
(not reported)
Hardness:
2 - 3 on Mohs scale
Cleavage:
Perfect
Perfect on {010}
Perfect on {010}
Density:
1.815 g/cm3 (Measured) 1.85 g/cm3 (Calculated)
Optical Data of Aubertite
Type:
Biaxial (-)
RI values:
nα = 1.462 nβ = 1.482 nγ = 1.495
2V:
Measured: 71° , Calculated: 76°
Max. Birefringence:
δ = 0.033
Based on recorded range of RI values above.
Based on recorded range of RI values above.
Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 ”m thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars.
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 ”m thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars.
Surface Relief:
Moderate
Dispersion:
r > v strong
Chemistry of Aubertite
Mindat Formula:
CuAl(SO4)2Cl · 14H2O
Element Weights:
Crystallography of Aubertite
Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Cell Parameters:
a = 6.28 Å, b = 13.23 Å, c = 6.28 Å
α = 91.17°, β = 94.67°, γ = 82.45°
α = 91.17°, β = 94.67°, γ = 82.45°
Ratio:
a:b:c = 0.475 : 1 : 0.475
Unit Cell V:
515.50 Ă
Âł (Calculated from Unit Cell)
Z:
1
Crystal Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0009692 | Aubertite | Ginderow D, Cesbron F (1979) Structure cristalline de l'aubertite, AlCuCl(SO4)2*14H2O Acta Crystallographica B35 2499-2502 |  | 1979 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 4.50 Ă | (100) |
| 4.247 Ă | (69) |
| 3.952 Ă | (58) |
| 6.25 Ă | (45) |
| 5.59 Ă | (44) |
| 3.690 Ă | (42) |
| 3.130 Ă | (42) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 45a : [Sulfates, arsenates, selenates, antimonates] | |
| 45b : [Other oxidized fumarolic minerals] | |
| 47a : [Near-surface hydration of prior minerals] | |
| 47b : [Sulfates and sulfites] | |
| 47g : [Halogen-bearing surface weathering minerals] | |
| Stage 10b: Anthropogenic minerals | <10 Ka |
| 55 : Anthropogenic mine minerals |
Type Occurrence of Aubertite
General Appearance of Type Material:
Azure-blue crusts of corroded grains.
Place of Conservation of Type Material:
University of Pierre and Marie Curie, Paris.
National School of Mines, Paris, France.
National School of Mines, Paris, France.
Geological Setting of Type Material:
Oxidized zone of a copper deposit.
Associated Minerals at Type Locality:
Synonyms of Aubertite
Other Language Names for Aubertite
Dutch:Aubertiet
French:Aubertite
German:Aubertit
Norwegian:Aubertitt
Russian:ĐбДŃŃĐžŃ
Simplified Chinese:æ°Žæ°ŻééçŸ
Spanish:Aubertita
Relationship of Aubertite to other Species
Member of:
Other Members of Aubertite Group:
| Magnesioaubertite | (Mg,Cu)Al(SO4)2Cl · 14H2O | Tric. 1 : P1 |
| Svyazhinite | (Mg,Mn2+,Ca)(Al,Fe3+)(SO4)2F · 14H2O | Tric. |
| Wilcoxite | MgAl(SO4)2F · 17H2O | Tric. 1 : P1 |
Common Associates
Associations Based on Photo Data:
| 4 photos of Aubertite associated with Hexahydrite | Mg(H2O)6(SO4) |
| 4 photos of Aubertite associated with Halotrichite | Fe2+Al2(SO4)4 · 22H2O |
| 3 photos of Aubertite associated with Pyrite | FeS2 |
| 3 photos of Aubertite associated with Alunogen | Al2(SO4)3 · 17H2O |
| 2 photos of Aubertite associated with Pickeringite | MgAl2(SO4)4 · 22H2O |
| 1 photo of Aubertite associated with Butlerite | Fe3+(SO4)(OH) · 2H2O |
| 1 photo of Aubertite associated with Aluminocopiapite | Al2/3Fe3+4(SO4)6(OH)2 · 20H2O |
| 1 photo of Aubertite associated with Antofagastaite | Na2Ca(SO4)2 · 1.5H2O |
| 1 photo of Aubertite associated with Metasideronatrite | Na2Fe(SO4)2(OH) · H2O |
| 1 photo of Aubertite associated with Jarosite | KFe3+3(SO4)2(OH)6 |
Related Minerals - Strunz-mindat Grouping
| 7.DB.05 | Svyazhinite | (Mg,Mn2+,Ca)(Al,Fe3+)(SO4)2F · 14H2O |
| 7.DB.05 | Magnesioaubertite | (Mg,Cu)Al(SO4)2Cl · 14H2O |
| 7.DB.10 | Rostite | Al(SO4)(OH) · 5H2O |
| 7.DB.10 | Khademite | Al(SO4)F · 5H2O |
| 7.DB.15 | Jurbanite | Al(SO4)(OH) · 5H2O |
| 7.DB.20 | Minasragrite | (V4+O)(SO4) · 5H2O |
| 7.DB.20 | Anorthominasragrite | (V4+O)(SO4) · 5H2O |
| 7.DB.20 | Orthominasragrite | (V4+O)(SO4) · 5H2O |
| 7.DB.25 | Bobjonesite | (V4+O)(SO4) · 3H2O |
| 7.DB.27 | Karpovite | Tl2VO(SO4)2(H2O) |
| 7.DB.30 | Metahohmannite | Fe3+2(SO4)2O · 4H2O |
| 7.DB.30 | Hohmannite | Fe3+2(SO4)2O · 8H2O |
| 7.DB.30 | Amarantite | Fe3+2(SO4)2O · 7H2O |
| 7.DB.35 | Calciocopiapite | CaFe3+4(SO4)6(OH)2 · 20H2O |
| 7.DB.35 | Zincocopiapite | ZnFe3+4(SO4)6(OH)2 · 18H2O |
| 7.DB.35 | Aluminocopiapite | Al2/3Fe3+4(SO4)6(OH)2 · 20H2O |
| 7.DB.35 | Copiapite | Fe2+Fe3+4(SO4)6(OH)2 · 20H2O |
| 7.DB.35 | Cuprocopiapite | Cu2+Fe3+4(SO4)6(OH)2 · 20H2O |
| 7.DB.35 | Magnesiocopiapite | MgFe3+4(SO4)6(OH)2 · 20H2O |
| 7.DB.35 | Ferricopiapite | Fe3+0.67Fe3+4(SO4)6(OH)2 · 20H2O |
Other Information
Notes:
Water soluable.
Special Storage/
Display Requirements:
Display Requirements:
Must be kept dry.
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Aubertite
mindat.org URL:
https://www.mindat.org/min-416.html
Please feel free to link to this page.
Please feel free to link to this page.
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References for Aubertite
Reference List:
Cesbron, Fabien, Ginderow, Daria, SichÚre, Marie-Claude, Vachey, HélÚne (1979) L'aubertite, un nouveau chlorosulfate hydraté de cuivre et d'aluminium. Bulletin de Minéralogie, 102 (4) 348-350 doi:10.3406/bulmi.1979.7329
Ginderow, D., Cesbron, F. (1979) Structure cristalline de l'aubertite, AlCuCl(SO4)2·14H2O. Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry, 35 (11) 2499-2502 doi:10.1107/s0567740879009766
Cesbron, Fabien, Ginderow, Daria, SichÚre, Marie-Claude, Vachey, HélÚne (1979) L'aubertite, un nouveau chlorosulfate hydraté de cuivre et d'aluminium. Bulletin de Minéralogie, 102 (4) 348-350 doi:10.3406/bulmi.1979.7329
Localities for Aubertite
Showing 16 localities.
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
â - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
Argentina | |
| FĂ€rber (n.d.) |
Chile | |
| SEM-EDS by Igor V. Pekov |
| SEM-EDS by GĂŒnter BlaĂ | |
| Pieczonka et al. (2017) | |
| Samples analysed by Dr. Jochen Schluter | |
| Chukanov et al. (2013) | |
| |
| Bull.Min. (1979) |
| Cabestrero et al. (2022) |
Greece | |
| 90. +2 other references |
| Skarpelis et al. (2004) |
Italy | |
| Da Pelo et al. (2000) |
| P.Forti (1994) |
| Luetcke (n.d.) |
Lebanon | |
| Kruszewski (2019) |
Peru | |
| Diaby et al. (2006) |
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Coronel Manuel RodrĂguez mine, Mejillones peninsula, Mejillones, Antofagasta Province, Antofagasta, Chile